filename | src/sh4/sh4mem.c |
changeset | 939:6f2302afeb89 |
prev | 934:3acd3b3ee6d1 |
next | 945:787729653236 |
author | nkeynes |
date | Sat Jan 03 03:30:26 2009 +0000 (15 years ago) |
branch | lxdream-mem |
permissions | -rw-r--r-- |
last change | MMU work-in-progress * Move SDRAM out into separate sdram.c * Move all page-table management into mmu.c * Convert UTLB management to use the new page-tables * Rip out all calls to mmu_vma_to_phys_* and replace with direct access |
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nkeynes@10 | 1 | /** |
nkeynes@586 | 2 | * $Id$ |
nkeynes@939 | 3 | * |
nkeynes@939 | 4 | * This is a deprecated module that is not yet completely extricated from the |
nkeynes@939 | 5 | * surrounding code. |
nkeynes@10 | 6 | * |
nkeynes@10 | 7 | * Copyright (c) 2005 Nathan Keynes. |
nkeynes@10 | 8 | * |
nkeynes@10 | 9 | * This program is free software; you can redistribute it and/or modify |
nkeynes@10 | 10 | * it under the terms of the GNU General Public License as published by |
nkeynes@10 | 11 | * the Free Software Foundation; either version 2 of the License, or |
nkeynes@10 | 12 | * (at your option) any later version. |
nkeynes@10 | 13 | * |
nkeynes@10 | 14 | * This program is distributed in the hope that it will be useful, |
nkeynes@10 | 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
nkeynes@10 | 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
nkeynes@10 | 17 | * GNU General Public License for more details. |
nkeynes@10 | 18 | */ |
nkeynes@10 | 19 | |
nkeynes@35 | 20 | #define MODULE sh4_module |
nkeynes@35 | 21 | |
nkeynes@10 | 22 | #include <string.h> |
nkeynes@10 | 23 | #include <zlib.h> |
nkeynes@10 | 24 | #include "dream.h" |
nkeynes@10 | 25 | #include "mem.h" |
nkeynes@10 | 26 | #include "mmio.h" |
nkeynes@10 | 27 | #include "dreamcast.h" |
nkeynes@422 | 28 | #include "sh4/sh4core.h" |
nkeynes@422 | 29 | #include "sh4/sh4mmio.h" |
nkeynes@422 | 30 | #include "sh4/xltcache.h" |
nkeynes@100 | 31 | #include "pvr2/pvr2.h" |
nkeynes@10 | 32 | |
nkeynes@939 | 33 | /************** Obsolete methods ***************/ |
nkeynes@931 | 34 | |
nkeynes@931 | 35 | int32_t FASTCALL sh4_read_long( sh4addr_t addr ) |
nkeynes@10 | 36 | { |
nkeynes@931 | 37 | return sh4_address_space[addr>>12]->read_long(addr); |
nkeynes@10 | 38 | } |
nkeynes@10 | 39 | |
nkeynes@931 | 40 | int32_t FASTCALL sh4_read_word( sh4addr_t addr ) |
nkeynes@10 | 41 | { |
nkeynes@931 | 42 | return sh4_address_space[addr>>12]->read_word(addr); |
nkeynes@10 | 43 | } |
nkeynes@10 | 44 | |
nkeynes@931 | 45 | int32_t FASTCALL sh4_read_byte( sh4addr_t addr ) |
nkeynes@10 | 46 | { |
nkeynes@931 | 47 | return sh4_address_space[addr>>12]->read_byte(addr); |
nkeynes@931 | 48 | } |
nkeynes@931 | 49 | |
nkeynes@931 | 50 | void FASTCALL sh4_write_long( sh4addr_t addr, uint32_t val ) |
nkeynes@931 | 51 | { |
nkeynes@931 | 52 | sh4_address_space[addr>>12]->write_long(addr, val); |
nkeynes@931 | 53 | } |
nkeynes@931 | 54 | |
nkeynes@931 | 55 | void FASTCALL sh4_write_word( sh4addr_t addr, uint32_t val ) |
nkeynes@931 | 56 | { |
nkeynes@931 | 57 | sh4_address_space[addr>>12]->write_word(addr,val); |
nkeynes@931 | 58 | } |
nkeynes@931 | 59 | |
nkeynes@931 | 60 | void FASTCALL sh4_write_byte( sh4addr_t addr, uint32_t val ) |
nkeynes@931 | 61 | { |
nkeynes@931 | 62 | sh4_address_space[addr>>12]->write_byte(addr, val); |
nkeynes@10 | 63 | } |
nkeynes@10 | 64 | |
nkeynes@10 | 65 | /* FIXME: Handle all the many special cases when the range doesn't fall cleanly |
nkeynes@400 | 66 | * into the same memory block |
nkeynes@10 | 67 | */ |
nkeynes@912 | 68 | void mem_copy_from_sh4( sh4ptr_t dest, sh4addr_t srcaddr, size_t count ) { |
nkeynes@103 | 69 | if( srcaddr >= 0x04000000 && srcaddr < 0x05000000 ) { |
nkeynes@736 | 70 | pvr2_vram64_read( dest, srcaddr, count ); |
nkeynes@103 | 71 | } else { |
nkeynes@736 | 72 | sh4ptr_t src = mem_get_region(srcaddr); |
nkeynes@736 | 73 | if( src == NULL ) { |
nkeynes@736 | 74 | WARN( "Attempted block read from unknown address %08X", srcaddr ); |
nkeynes@736 | 75 | } else { |
nkeynes@736 | 76 | memcpy( dest, src, count ); |
nkeynes@736 | 77 | } |
nkeynes@103 | 78 | } |
nkeynes@10 | 79 | } |
nkeynes@10 | 80 | |
nkeynes@912 | 81 | void mem_copy_to_sh4( sh4addr_t destaddr, sh4ptr_t src, size_t count ) { |
nkeynes@325 | 82 | if( destaddr >= 0x10000000 && destaddr < 0x14000000 ) { |
nkeynes@736 | 83 | pvr2_dma_write( destaddr, src, count ); |
nkeynes@736 | 84 | return; |
nkeynes@325 | 85 | } else if( (destaddr & 0x1F800000) == 0x05000000 ) { |
nkeynes@736 | 86 | pvr2_render_buffer_invalidate( destaddr, TRUE ); |
nkeynes@325 | 87 | } else if( (destaddr & 0x1F800000) == 0x04000000 ) { |
nkeynes@736 | 88 | pvr2_vram64_write( destaddr, src, count ); |
nkeynes@736 | 89 | return; |
nkeynes@325 | 90 | } |
nkeynes@502 | 91 | sh4ptr_t dest = mem_get_region(destaddr); |
nkeynes@325 | 92 | if( dest == NULL ) |
nkeynes@736 | 93 | WARN( "Attempted block write to unknown address %08X", destaddr ); |
nkeynes@325 | 94 | else { |
nkeynes@736 | 95 | xlat_invalidate_block( destaddr, count ); |
nkeynes@736 | 96 | memcpy( dest, src, count ); |
nkeynes@90 | 97 | } |
nkeynes@10 | 98 | } |
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